mquan/cortex — pull request #55 by smhg (2014-11-11 16:33:36+00:00)
Title: removeAt with negative index

This prevents a negative index (typically `-1`) passed to `removeAt()` to alter the array. Without, it removes the last element of the array (`pop()` can be used for this).

Useful in situations where a valid index couldn't be found and no action should be taken:
```javascript
cortex.removeAt(cortex.findIndex(someComparator));
```